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A176772 as a simple table

na(n)
04826809
11
22197
313
44826809
528561
6169
72197
828561
9169
1010604499373
1151185893014090757
12371293
1313
1451185893014090757
15815730721
16169
1762748517
18137858491849
192197
201461920290375446110677
212197
2223298085122481

[4826809,1,2197,13,4826809,28561,169,2197,28561,
 169,10604499373,51185893014090757,371293,13,
 51185893014090757,815730721,169,62748517,
 137858491849,2197,1461920290375446110677,2197,
 23298085122481]